Newtons Laws

• newtons first law

  if the resultant force on an object is zero the forces are balanced and the object will remain stationary or move at a constant speed
• newtons second law

  if there is a resultant force on an object the forces are unbalanced so the object will speed up, slow down or change direction
• inertia

  is the tendency of objects to continue in their state of uniform motion
• inertial mass

  is a measure of how difficult it is to accelerate or decelerate an object
• newtons third law

  when two objects interact the forces they exert on each other are equal and opposite